WASHINGTON (AP) — President Donald Trump dismissed George Papadopoulos on Tuesday as a "liar" and a mere campaign volunteer, but newly unsealed court papers outline the former adviser's frequent contacts with senior officials and with foreign nationals who promised access to the highest levels of the Russian government.

They also hint at more headaches for the White House and former campaign officials. Papadopoulos is now cooperating with Special Counsel Robert Mueller as he investigates possible coordination between Russia and Trump's 2016 White House campaign.

Records made public Monday in P...